Apply suggestions from code review (removing .first())

Co-authored-by: Jonas Scheid <43858870+jonasscheid@users.noreply.github.com>

Author: charles-plessy

subworkflows/local/pairalign_m2m/main.nf

@@ -65,7 +65,7 @@ workflow PAIRALIGN_M2M {
         ch_queries_with_params,
         ALIGNMENT_LASTDB.out.index.map { row -> row[1] }  // Remove metadata map
     )
-    ch_versions = ch_versions.mix(ALIGNMENT_LASTAL_M2M.out.versions.first())
+    ch_versions = ch_versions.mix(ALIGNMENT_LASTAL_M2M.out.versions)
 
     // Optionally plot the many-to-many alignment
     //
@@ -76,7 +76,7 @@ workflow PAIRALIGN_M2M {
             'png',
             []
         )
-        ch_versions = ch_versions.mix(ALIGNMENT_DOTPLOT_M2M.out.versions.first())
+        ch_versions = ch_versions.mix(ALIGNMENT_DOTPLOT_M2M.out.versions)
         if ( params.dotplot_filter ) {
             ALIGNMENT_DOTPLOT_M2M_FLT (
                 ALIGNMENT_LASTAL_M2M.out.maf.join(ch_queries_bed),
@@ -92,7 +92,7 @@ workflow PAIRALIGN_M2M {
     ALIGNMENT_SPLIT_O2M (
         ALIGNMENT_LASTAL_M2M.out.maf
     )
-    ch_versions = ch_versions.mix(ALIGNMENT_SPLIT_O2M.out.versions.first())
+    ch_versions = ch_versions.mix(ALIGNMENT_SPLIT_O2M.out.versions)
     if (! (params.skip_dotplot_o2m) ) {
         ALIGNMENT_DOTPLOT_O2M (
             ALIGNMENT_SPLIT_O2M.out.maf.join(ch_queries_bed),

subworkflows/local/pairalign_m2o/main.nf

@@ -36,7 +36,7 @@ workflow PAIRALIGN_M2O {
     ALIGNMENT_LASTDB (
         ch_target
     )
-    ch_versions = ch_versions.mix(ALIGNMENT_LASTDB.out.versions.first())
+    ch_versions = ch_versions.mix(ALIGNMENT_LASTDB.out.versions)
 
     // Train alignment parameters if not provided
     //