This update for irssi fixes the following issues:

irssi was updated to 1.2.3 (boo#1184848)

- Fix the compilation of utf8proc (#1021)
- Fix wrong call to free. By Zero King (#1076)
- Fix a colour reset in true colour themes when encountering
  mIRC colours (#1059)
- Fix memory leak on malformed CAP requests (#1120)
- Fix an erroneous free of SASL data. Credit to Oss-Fuzz (#1128,
  #1130)
- Re-set the TLS flag when reconnecting (#1027, #1134)
- Fix the scrollback getting stuck after /clear (#1115, #1136)
- Fix the input of Ctrl+C as the first character (#1153,  #1154)
- Fix crash on quit during unloading of modules on certain
  platforms (#1167)
- Fix Irssi freezing input after Ctrl+Space on GLib >2.62 (#1180,
  #1183)
- Fix layout of IDCHANs. By Lauri Tirkkonen (#1197)
- Fix crash when server got reconnected before it was properly
  connected (#1210, #1211)
- Fix multiple identical active caps (#1249)
- Minor help corrections (#1156, #1213, #1214, #1255)
- Remove erroneous colour in the colorless theme. Reported and
  fixed by Nutchanon Wetchasit (#1220, #1221)
- Fix invalid bounds calculation when editing the text
  entry. Found and fixed by Sergey Valentey (#1269)
- Fix passing of negative size in buffer writes. Found and
  fixed by Sergey Valentey (#1270)
- Fix Irssi freezing on slow hardware and fast DCC transfers (#159,
  #1271)
- Fix compilation on Solaris (#1291)
- Fix null pointer dereference when receiving broken JOIN
  record. Credit to Oss-Fuzz (#1292)
- Fix crash on /connect to some sockets (#1239, #1298)
- Fix Irssi rendering on Apple ARM. By Misty De Méo (#1267,
  #1268, #1290)
- Fix crash on /lastlog with broken lines (#1281, #1299)
- Fix memory leak when receiving bogus SASL authentication
  data. Found and fixed by Sergey Valentey (#1293)

This update was imported from the openSUSE:Leap:15.2:Update update project.